diff --git a/setup.py b/setup.py
index fd0193e..a04dd89 100644
--- a/setup.py
+++ b/setup.py
@@ -11,6 +11,7 @@
     description='Python emulator for AWS Lambda.',
     install_requires=[
         'hurry.filesize',
-        'numpy'
+        'numpy',
+        'boto3'
       ]
 )